Update README.md

Fix broken links for Static Core Components [rp, rt]

Author: fig

docs/components/README.md

@@ -55,8 +55,8 @@ You can build your [own components](/docs/extend/README.md) as well, both static
 - [pre](/docs/components/pre.md)
 - [progress](/docs/components/progress.md)
 - [q](/docs/components/q.md)
-- [rp](/docs/components/rt.md)
-- [rt](/docs/components/rb.md)
+- [rp](/docs/components/rp.md)
+- [rt](/docs/components/rt.md)
 - [ruby](/docs/components/ruby.md)
 - [s](/docs/components/s.md)
 - [section](/docs/components/section.md)